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Finding the Fourth Proportional to 9,869,957.70, 14,804,936.55 and 7,000,176.30

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Solution

The fourth proportional to 9,869,957.70, 14,804,936.55 and 7,000,176.30 is: 10,500,264.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869,957.70 : 14,804,936.55 = 7,000,176.30 : x
  2. Step 2: Convert to fraction form
    9,869,957.70/14,804,936.55 = 7,000,176.30/x
  3. Step 3: Cross multiply
    9,869,957.70x = 14,804,936.55 × 7,000,176.30
  4. Step 4: Simplify right side
    9,869,957.70x = 103,637,165,960,313.77
  5. Step 5: Solve for x
    x = 103,637,165,960,313.77/9,869,957.70
  6. Step 6: Final answer
    x = 10,500,264.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.