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Finding the Fourth Proportional to 6,716,699.79, 9,274,859.13 and 6,371,934.12

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Solution

The fourth proportional to 6,716,699.79, 9,274,859.13 and 6,371,934.12 is: 8,798,784.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,716,699.79 : 9,274,859.13 = 6,371,934.12 : x
  2. Step 2: Convert to fraction form
    6,716,699.79/9,274,859.13 = 6,371,934.12/x
  3. Step 3: Cross multiply
    6,716,699.79x = 9,274,859.13 × 6,371,934.12
  4. Step 4: Simplify right side
    6,716,699.79x = 59,098,791,348,640.52
  5. Step 5: Solve for x
    x = 59,098,791,348,640.52/6,716,699.79
  6. Step 6: Final answer
    x = 8,798,784.10

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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.