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Finding the Fourth Proportional to 61,349.45, 84,666.29 and 38,375.70

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Solution

The fourth proportional to 61,349.45, 84,666.29 and 38,375.70 is: 52,961.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,349.45 : 84,666.29 = 38,375.70 : x
  2. Step 2: Convert to fraction form
    61,349.45/84,666.29 = 38,375.70/x
  3. Step 3: Cross multiply
    61,349.45x = 84,666.29 × 38,375.70
  4. Step 4: Simplify right side
    61,349.45x = 3,249,127,981.83
  5. Step 5: Solve for x
    x = 3,249,127,981.83/61,349.45
  6. Step 6: Final answer
    x = 52,961.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.