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Finding the Fourth Proportional to 35,607.74, 53,415.22 and 9,312.70

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Solution

The fourth proportional to 35,607.74, 53,415.22 and 9,312.70 is: 13,969.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,607.74 : 53,415.22 = 9,312.70 : x
  2. Step 2: Convert to fraction form
    35,607.74/53,415.22 = 9,312.70/x
  3. Step 3: Cross multiply
    35,607.74x = 53,415.22 × 9,312.70
  4. Step 4: Simplify right side
    35,607.74x = 497,439,919.29
  5. Step 5: Solve for x
    x = 497,439,919.29/35,607.74
  6. Step 6: Final answer
    x = 13,969.99

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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.