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Finding the Fourth Proportional to 19,465.49, 26,860.76 and 10,964.90

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Solution

The fourth proportional to 19,465.49, 26,860.76 and 10,964.90 is: 15,130.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,465.49 : 26,860.76 = 10,964.90 : x
  2. Step 2: Convert to fraction form
    19,465.49/26,860.76 = 10,964.90/x
  3. Step 3: Cross multiply
    19,465.49x = 26,860.76 × 10,964.90
  4. Step 4: Simplify right side
    19,465.49x = 294,525,547.32
  5. Step 5: Solve for x
    x = 294,525,547.32/19,465.49
  6. Step 6: Final answer
    x = 15,130.65

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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.