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Finding the Fourth Proportional to 10,428.51, 15,627.06 and 6,263.94

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Solution

The fourth proportional to 10,428.51, 15,627.06 and 6,263.94 is: 9,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.51 : 15,627.06 = 6,263.94 : x
  2. Step 2: Convert to fraction form
    10,428.51/15,627.06 = 6,263.94/x
  3. Step 3: Cross multiply
    10,428.51x = 15,627.06 × 6,263.94
  4. Step 4: Simplify right side
    10,428.51x = 97,886,966.22
  5. Step 5: Solve for x
    x = 97,886,966.22/10,428.51
  6. Step 6: Final answer
    x = 9,386.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.