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Finding the Fourth Proportional to 9,875.80, 14,821.80 and 9,551.80

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Solution

The fourth proportional to 9,875.80, 14,821.80 and 9,551.80 is: 14,335.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,875.80 : 14,821.80 = 9,551.80 : x
  2. Step 2: Convert to fraction form
    9,875.80/14,821.80 = 9,551.80/x
  3. Step 3: Cross multiply
    9,875.80x = 14,821.80 × 9,551.80
  4. Step 4: Simplify right side
    9,875.80x = 141,574,869.24
  5. Step 5: Solve for x
    x = 141,574,869.24/9,875.80
  6. Step 6: Final answer
    x = 14,335.53

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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.