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Finding the Fourth Proportional to 15,569.48, 21,492.11 and 9,607.16

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Solution

The fourth proportional to 15,569.48, 21,492.11 and 9,607.16 is: 13,261.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,569.48 : 21,492.11 = 9,607.16 : x
  2. Step 2: Convert to fraction form
    15,569.48/21,492.11 = 9,607.16/x
  3. Step 3: Cross multiply
    15,569.48x = 21,492.11 × 9,607.16
  4. Step 4: Simplify right side
    15,569.48x = 206,478,139.51
  5. Step 5: Solve for x
    x = 206,478,139.51/15,569.48
  6. Step 6: Final answer
    x = 13,261.72

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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.