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Finding the Fourth Proportional to 12,715.13, 17,547.05 and 6,973.12

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Solution

The fourth proportional to 12,715.13, 17,547.05 and 6,973.12 is: 9,623.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715.13 : 17,547.05 = 6,973.12 : x
  2. Step 2: Convert to fraction form
    12,715.13/17,547.05 = 6,973.12/x
  3. Step 3: Cross multiply
    12,715.13x = 17,547.05 × 6,973.12
  4. Step 4: Simplify right side
    12,715.13x = 122,357,724.66
  5. Step 5: Solve for x
    x = 122,357,724.66/12,715.13
  6. Step 6: Final answer
    x = 9,623.00

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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.