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Finding the Fourth Proportional to 21,064.51, 29,068.23 and 11,504.08

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Solution

The fourth proportional to 21,064.51, 29,068.23 and 11,504.08 is: 15,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064.51 : 29,068.23 = 11,504.08 : x
  2. Step 2: Convert to fraction form
    21,064.51/29,068.23 = 11,504.08/x
  3. Step 3: Cross multiply
    21,064.51x = 29,068.23 × 11,504.08
  4. Step 4: Simplify right side
    21,064.51x = 334,403,243.38
  5. Step 5: Solve for x
    x = 334,403,243.38/21,064.51
  6. Step 6: Final answer
    x = 15,875.20

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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.